AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 85 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q2 2015. The put-call ratio across all filers is - and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2016 | $467,000 | -54.9% | 38,905 | -46.5% | 0.02% | -47.7% |
| Q4 2015 | $1,035,000 | +111.7% | 72,753 | +74.1% | 0.04% | +100.0% |
| Q3 2015 | $489,000 | -23.6% | 41,800 | +14.8% | 0.02% | -18.5% |
| Q2 2015 | $640,000 | -94.2% | 36,400 | -95.0% | 0.03% | -93.5% |
| Q1 2015 | $10,980,000 | +43.2% | 733,932 | +11.2% | 0.42% | +21.2% |
| Q4 2014 | $7,665,000 | -0.4% | 660,232 | 0.0% | 0.34% | +6.2% |
| Q3 2014 | $7,692,000 | – | 660,232 | – | 0.32% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| LAM GROUP, INC. | 130,250 | $4,884,375 | 4.79% |
| SHAKER INVESTMENTS LLC/OH | 82,253 | $3,084,488 | 1.72% |
| Mesirow Institutional Investment Management, Inc. | 325,669 | $12,212,588 | 1.33% |
| Portolan Capital Management | 340,593 | $12,772,238 | 1.22% |
| OBERWEIS ASSET MANAGEMENT INC/ | 178,200 | $6,682,500 | 1.04% |
| Granite Investment Partners, LLC | 536,821 | $20,130,788 | 0.84% |
| Capital Impact Advisors, LLC | 15,304 | $573,900 | 0.70% |
| Hillsdale Investment Management Inc. | 155,038 | $5,813,926 | 0.50% |
| GLOBEFLEX CAPITAL L P | 89,192 | $3,344,700 | 0.41% |
| Jackson Creek Investment Advisors LLC | 25,877 | $970 | 0.41% |